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Finding the Fourth Proportional to 134,438.80, 185,448.67 and 84,050.32

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Solution

The fourth proportional to 134,438.80, 185,448.67 and 84,050.32 is: 115,941.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,438.80 : 185,448.67 = 84,050.32 : x
  2. Step 2: Convert to fraction form
    134,438.80/185,448.67 = 84,050.32/x
  3. Step 3: Cross multiply
    134,438.80x = 185,448.67 × 84,050.32
  4. Step 4: Simplify right side
    134,438.80x = 15,587,019,383.33
  5. Step 5: Solve for x
    x = 15,587,019,383.33/134,438.80
  6. Step 6: Final answer
    x = 115,941.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.